4D Advisors’s Ultra Clean Holdings UCTT Stock Holding History

4D Advisors’s Portfolio UCTT Stock Details UCTT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-75,000	Closed	-$4.66M	–	49
2026 Q1	$4.66M	Sell	75,000 -60,000	-44%	-$3.08M	2.96%	13
2025 Q4	$3.42M	Buy	+135,000	New	+$3.59M	1.87%	31

Other funds holding UCTT

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

DCM

Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

4D Advisors's UCTT Position: Q2 2026 in Review

4D Advisors sold out of Ultra Clean Holdings (UCTT) in Q2 2026, closing a stake of 75,000 shares — an estimated $4.66M sold.

4D Advisors first reported a position in UCTT in Q4 2025 and held it in 2 quarters. The position peaked at $4.66M in Q1 2026. 438 funds tracked by Wall St. Rank hold UCTT as of Q2 2026.

4D Advisors reported no remaining Ultra Clean Holdings position as of Q2 2026 after selling out during the quarter.
4D Advisors sold 75,000 Ultra Clean Holdings shares in Q2 2026, an estimated $4.66M.
4D Advisors first reported a position in Ultra Clean Holdings in Q4 2025 and held it in 2 quarters.
4D Advisors's Ultra Clean Holdings position peaked at $4.66M in Q1 2026.
438 funds tracked by Wall St. Rank held Ultra Clean Holdings as of Q2 2026.

Based on 4D Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.